<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>layui</title>
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" href="../lib/layui-v2.5.5/css/layui.css" media="all">
    <link rel="stylesheet" href="../css/public.css" media="all">
    <style>
        body {
            background-color: #ffffff;
        }
    </style>
</head>
<body>
<div class="layui-form layuimini-form">
    <input type="hidden" name="id" id="id">
    <div class="layui-form-item">
        <label class="layui-form-label required">课程名称</label>
        <div class="layui-input-block">
            <input type="text" name="courseName" id="courseName" lay-verify="required" lay-reqtext="课程名称不能为空" placeholder="请输入课程名称" class="layui-input">
            <tip>填写课程名称</tip>
        </div>
    </div>
    <div class="layui-upload"> <button type="button" class="layui-btn" id="test1">课程图片上传</button>
        <div class="layui-upload-list">
            <img class="layui-upload-img" id="demo1">
            <p id="demoText"></p>
        </div>
        <div style="width: 95px;">
            <div class="layui-progress layui-progress-big" lay-showpercent="yes" lay-filter="demo">
                <div class="layui-progress-bar" lay-percent=""></div>
            </div>
        </div>
    </div> <a name="list-progress"> </a>
    <input id="coursePic" name="coursePic" type="hidden">

    <div class="layui-form-item">
        <label class="layui-form-label required">课程状态</label>
        <div class="layui-input-block">
            <input type="radio" name="courseStatus" value="0" title="上架" checked="">
            <input type="radio" name="courseStatus" value="1" title="下架">
        </div>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label required">课程价格</label>
        <div class="layui-input-block">
            <input type="number" name="pay" id="pay" lay-verify="required" lay-reqtext="价格不能为空" placeholder="请输入课程价格" value="" class="layui-input">
        </div>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label">课程老师</label>
        <div class="layui-input-block">
            <select name="courseTeachs" id="courseTeachs" lay-filter="aihao">
                <option value=""></option>
            </select>
        </div>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label">课程分类</label>
        <div class="layui-input-block">
            <select name="classfiyId" id="classfiyId" lay-filter="aihao">
                <option value=""></option>
            </select>
        </div>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label required">面向用户</label>
        <div class="layui-input-block">
            <input type="text" name="users" id="users" lay-verify="required" lay-reqtext="用户不能为空" placeholder="请定义面向用户" class="layui-input">
        </div>
    </div>
    <div class="layui-form-item layui-form-text">
        <label class="layui-form-label">课程描述</label>
        <div class="layui-input-block">
            <textarea name="courseDescription" id="courseDescription" class="layui-textarea" placeholder="请输入课程描述"></textarea>
        </div>
    </div>

    <div class="layui-form-item">
        <div class="layui-input-block">
            <button class="layui-btn" lay-submit lay-filter="saveBtn">确认保存</button>
        </div>
    </div>
</div>
<script src="../lib/layui-v2.5.5/layui.js" charset="utf-8"></script>
<script src="../lib/jquery-3.4.1/jquery-3.4.1.min.js" charset="utf-8"></script>

<script>
    //进入页面先进行数据回显
    $(function () {
        var classifyid;
        var teacherid;
        var id = window.localStorage.getItem("id")
        $.ajax({
            url:"/course/findById?id="+id,
            dataType:"json",
            success:function (res) {
                if(res.code==0){
                    $("#id").val(id);
                    $("#courseName").val(res.data.courseName);
                    $("#coursePic").val(res.data.coursePic);
                    $("#pay").val(res.data.pay);
                    $("#courseTeachs").val(res.data.courseTeachs);
                    $("#classfiyId").val(res.data.classfiyId);
                    $("#users").val(res.data.users);
                    $("#courseDescription").val(res.data.courseDescription)
                    teacherid=res.data.courseTeachs;
                    classifyid=res.data.classfiyId;
                    chooseTeaAndClas(teacherid,classifyid);
                }
            }
        })
    })
    
    function chooseTeaAndClas(teacherid,classifyid) {
        $.ajax({
            url:'/qfTeach/findAllTeacher',
            dataType: "json",
            success:function (res) {
                //console.log(res.data)
                if (res.code==0){
                    //动态得赋值给select标签 相当于for循环、
                    //1.循环的集合。2.Index == 循环得对象得下标。3Item 循环得对象本身
                    $.each(res.data,function (index,item) {
                        //通过id选择器获取到select标签，对select标签添加option对象 1.展示得数据 2.value值
                        // debugger;
                        if (item.id==teacherid){
                            //标识当前得option是被选中得状态
                            $("#courseTeachs").append(new Option(item.teachName,item.id,false,true))
                        }else {
                            $("#courseTeachs").append(new Option(item.teachName,item.id))
                        }

                    })
                }

            }
        })


        $.ajax({
            url:'/qfClassify/findAllClassify',
            dataType: "json",
            success:function (res) {
                console.log(res.data)
                if (res.code==0){
                    //动态得赋值给select标签 相当于for循环、
                    //1.循环的集合。2.Index == 循环得对象得下标。3Item 循环得对象本身
                    $.each(res.data,function (index,item) {
                        //通过id选择器获取到select标签，对select标签添加option对象 1.展示得数据 2.value值
                        if (item.id==classifyid){
                            $("#classfiyId").append(new Option(item.courseClassifyName,item.id,false,true))
                        }else{
                            $("#classfiyId").append(new Option(item.courseClassifyName,item.id))
                        }

                    })
                }

            }
        })
    }
</script>


<script>



    layui.use(['form','upload', 'element', 'layer'], function () {
        var form = layui.form,
            upload = layui.upload
            ,element = layui.element
            ,layer = layui.layer
        $ = layui.$;

        //常规使用 - 普通图片上传
        var uploadInst = upload.render({
            elem: '#test1'
            ,url: '/upload' //此处用的是第三方的 http 请求演示，实际使用时改成您自己的上传接口即可。
            ,before: function(obj){
                //预读本地文件示例，不支持ie8
                obj.preview(function(index, file, result){
                    $('#demo1').attr('src', result); //图片链接（base64）
                });

                element.progress('demo', '0%'); //进度条复位
                layer.msg('上传中', {icon: 16, time: 0});
            }
            ,done: function(res){
                //如果上传失败
                if(res.code > 0){
                    return layer.msg('上传失败');
                }
                //上传成功的一些操作
                $("#coursePic").val(res.data);
                //……
                $('#demoText').html(''); //置空上传失败的状态
            }
            ,error: function(){
                //演示失败状态，并实现重传
                var demoText = $('#demoText');
                demoText.html('<span style="color: #FF5722;">上传失败</span> <a class="layui-btn layui-btn-xs demo-reload">重试</a>');
                demoText.find('.demo-reload').on('click', function(){
                    uploadInst.upload();
                });
            }
            //进度条
            ,progress: function(n, elem, e){
                element.progress('demo', n + '%'); //可配合 layui 进度条元素使用
                if(n == 100){
                    layer.msg('上传完毕', {icon: 1});
                }
            }
        });



        //监听提交
        form.on('submit(saveBtn)', function (data) {
            var index = layer.alert(JSON.stringify(data.field), {
                title: '最终的提交信息'
            }, function () {
                $.ajax({
                    url:"/course/updateCourse",
                    type:"POST",
                    dataType:"json",
                    contentType:"application/json",
                    data:JSON.stringify(data.field),
                    success:function (res) {
                        if(res.code==0){
                            // 关闭弹出层
                            layer.close(index);
                            var iframeIndex = parent.layer.getFrameIndex(window.name);
                            parent.layer.close(iframeIndex);
                        }
                    }
                })
            });
            return false;
        });
        //重新加载select标签
        form.render("select");
    });
</script>
</body>
</html>